The palaeoecology of human impact in the New Forest

An investigation was carried out into the role of human impact on natural vegetation development within the New Forest, southern England. Palaeoenvironmental records have been obtained from nine valley mire deposits and collectively cover the last 10,000 years. Pollen and charcoal analyses were the main proxy techniques applied, in association with chronologies provided by spheroidal carbonaceous particles (SCP) analysis and radiocarbon dating. Human impact was identified dating from the Mesolithic onwards. Fire was found to have played an important role in the development and composition of early Holocene woodland, particularly in relation to the abundance of Pinnus sylvestris and Alnus glutinosa. In addition to fire, other disturbance patterns have been identified from early Holocene woodland environments, including cycles between open and closed woodland canopies. The arrival of Fagus sylvestris in southern Britain has been reviewed. New data indicate it arrived 8000 years ago but was unable to compete and gain dominance without significant human intervention. This is in contrast with the current view of its arrival in southern Britain only 3000 years ago. The timing of heathland development and expansion was asynchronous, ranging from the early Holocene through to the Roman period. This contrasts with the previous view that heathland formation was predominantly due to Bronze Age activity. The British Lime Decline is reviewed and found to have a variety of driving factors, although anthropogenic activity was the principal influence. In southern Britain most declines are found to date between the late Neolithic and middle Bronze Age. In the New Forest, Roman activities associated with the pottery industry are linked with clearance and woodland management. Active coppicing of Corylus avellana possibly occurred in one of the pottery production areas.